Then Li Shimin was playing with the flashlight again.
Except for the time of giving instructions and morning court.
He has been playing with the flashlight all the time these two days.
He is like a child who has not grown up.
If he were twenty or thirty years younger, perhaps this kind of research spirit could be seen by Li Min.
Even reuse him.
Time goes very quickly.
Soon it was night again.
Li Shimin's playfulness has reached the point of going crazy.
He ordered that the entire Tai Chi Palace was not allowed to turn on the lights.
And he was bringing Empress Changsun and Concubine Yang with flashlights.
Wandering around everywhere.
This is truly an idle emperor!
In his words, this is called romance.
But the people in the palace at this time did not understand his so-called romance.
But I dare not discuss Li Shimin.
At this moment, a eunuch hurriedly entered the palace.
He saluted Li Shimin.
"Your Majesty, General Cheng would like to see you."
Li Shimin was puzzled.
It was so late, what was Cheng Yaojin doing with him?
So he told the eunuch: "No, let him go back!"
Empress Changsun said: "Zhijie usually doesn't enter the palace so late. Maybe there is something wrong?"
Li Shimin thought for a while, originally he didn't want that guy to disturb his enjoyment.
Think about it and forget it.
"Then let him in."
So Cheng Yaojin walked in.
He walked in with a white box in his left hand and a flashlight in his right hand.
This flashlight was given to him by Li Shimin, and there were some words engraved on it.
These words were all thought up by Li Shimin.
When Cheng Yaojin saw Li Shimin and Changsun Queen Yang Fei.
It was convenient for them to salute.
"I pay my respects to Your Majesty, Your Highness the Queen, and Concubine Yang!"
"What's wrong? Why did you enter the palace so late?"
Li Shimin was not in a good mood.
It was finally possible to have a romance with Empress Changsun and Concubine Yang, but Cheng Yaojin entered the palace.
At this time, Cheng Yaojin immediately said: "Your Majesty! I have something very interesting. Do you want to see it?"
So he patted the white object in his left hand.
When Li Shimin saw it, he didn't recognize it.
Then he asked: "What is this?"
"Your Majesty, guess what!"
Cheng Yao pretended to be mysterious.
"I don't have time to guess, just tell me!" Li Shimin was not in the mood to guess.
Moreover, it was a big old man who said what you guessed, which made him feel a little uncomfortable.
"Then your Majesty will know after a look! Let's go to the palace and have a look!"
"Oh?" Li Shimin was puzzled.
Why do you have to go to the palace to see it? Can't you see it here?
"Then go and have a look!" Queen Changsun said.
So the four of them walked to the palace.
Li Shimin ordered the lights to be turned on.
When the light came on, a square box appeared in front of him.
Li Shimin asked: "Zhijie, why are you bringing that big box over here at this late hour?"
Cheng Yaojin pretended to be mysterious and said: "Your Majesty doesn't know something, this is a good thing!"
"What good stuff?"
"I want a white wall for display."
Speaking of the white wall, Li Shimin pointed to the right and said: "There, the white wall is there, what do you want to do?"
"I can make a white wall look colorful."
"What? Can you really do that?" Queen Changsun asked.
Li Shimin thought Cheng Yaojin was faking it.
As soon as I saw him today, I felt that this guy was a little abnormal.
He was not like this before.
So, Li Shimin said again: "What a good Cheng Zhijie! Do you know what you are talking about? Are you afraid that your brain is broken?"
"Your Majesty, I am not lying, it is true!"
Cheng Yaojin felt aggrieved.
Although he clearly had something good to offer, he was scolded by Li Shimin.
At this time, the queen followed up and said: "Zhijie, how can a colorful picture appear on a white wall? It is only possible if you paint it with a brush."
Cheng Yaojin did not dare to be mysterious, but said:
"The problem lies in this box. As long as it is combined into this thing, I will definitely make you feel what it means to be dazzling and colorful."
He waved the flashlight in his hand.
Everyone really can't imagine how much surprise the two can bring to them.
"Your Majesty, please look!"
So Cheng Yaojin opened the white box.
The inner structure is revealed.
There is a lens in the front and a strip of film in the back.
After the film, there is an empty space in the shape of a flashlight.
Cheng Yaojin placed the flashlight on the empty space and turned on the flashlight.
Finally the box was closed.
He said to the eunuch: "Turn out the light."
So the eunuch turned off the lights.
When the light is turned off, a ray of light comes out.
"Your Majesty, please look!"
A painting instantly appeared on the white wall.
The colors of this painting are very bright, but a little yellowish.
This has a lot to do with the flashlight light!
After all, current light bulbs can only illuminate yellow.
But it cannot be like the future, which can shine with white light.
But even so, the pictures projected on the wall are still colorful.
Li Shimin asked: "Isn't this a movie?"
Concubine Yang then said: "Yes, that's how movies are made. Could it be that this thing is a movie player?"
Cheng Yaojin said: "In the words of the Sixth Prince, this is called a projector!"
projector?
What it is.
Everyone was shocked, what is it used for?
This is everyone's second question.
While they were thinking about it, Cheng Yaojin started spinning the film.
The screen started to move.
There are even characters on it, which is very similar to watching a movie.
Li Shimin was puzzled. He walked to the lens and saw inside.
Through the lens, he could see the scene inside.
"It turns out that this picture is reflected in the mirror. So this is not a movie, what is it?"
Everyone has seen a movie player and knows what it looks like.
But Cheng Yaojin insisted that this was not a movie, but a slideshow.
In this case, Li Shimin asked: "Tell me, what is the difference between a projector and a movie?"
"The difference between the two is that one has sound and the other has no sound. The projector has no sound. The Sixth Prince positioned the projector for office use."
"What does office mean?"
"For example, if a major decision requires everyone to participate together, then the decision can be made into a film and placed in a projector for everyone to watch. It can contain some pictures, text, or anything captured by photos.
As long as it is useful for office meetings, you can put it in it, saying it can improve efficiency."
Whether it improves efficiency or not, Li Shimin doesn't know, but it's true that it can be used to watch short movies.
"I see!"
Li Shimin suddenly realized.
"This thing works so magically."
At the same time, Li Shimin suddenly remembered something.
"It turns out that this kid invented the flashlight for another purpose!"
Assembling with limited parts and giving different products more functions is what Shengtang Group wants to do.